let util = {}
util.getCookie = (name) => {
  let arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
  if (arr = document.cookie.match(reg))
    return (arr[2]);
  else
    return null;
}

//设置cookie,增加到vue实例方便全局调用
util.setCookie = (c_name, value, expiredays) => {
  let exdate = new Date();
  exdate.setDate(exdate.getDate() + expiredays);
  document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
}

//删除cookie
util.delCookie =  (name) => {
  let exp = new Date();
  exp.setTime(exp.getTime() - 1);
  let cval = getCookie(name);
  if (cval != null)
   document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
}

//存储
util.handleLocalStorage = (method, key, value) => {
  switch (method) {
    case 'get' : {
      let temp = window.localStorage.getItem(key);
      if (temp) {
        return  JSON.parse(temp)
      } else {
        return false
      }
    }
    case 'set' : {
      let  str = JSON.stringify(value)
      window.localStorage.setItem(key, str);
      break
    }
    case 'remove': {
      window.localStorage.removeItem(key);
      break
    }
    default : {
      return false
    }
  }
}

export default util